L'escassetat d'aigua, explicada de manera senzilla

L'escassetat d'aigua al planeta blau. La majoria de nosaltres no ens preocupem per l'aigua, només hem d'obrir l'aixeta. Però per gairebé 1.000 milions de persones que viuen en països en desenvolupament, l'accés a l'aigua potable no és una cosa fàcil. Aquest simpleshow explica per què el nostre planeta blau no té aigua. Per a més informació sobre l'escassetat d'aigua i per saber com pots ajudar, visita: https://thewaterproject.org/ Autor: Meike Gasser Fes clic aquí per veure més vídeos: https://alugha.com/mysimpleshow Fonts: https://thewaterproject.org/water_scarcity https://en.wikipedia.org/wiki/Water_scarcity https://en.wikipedia.org/wiki/Water Fonts en alemany: http://bit.ly/2UYwCyk http://bit.ly/2SzXC5y

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